U.S. patent application number 11/755008 was filed with the patent office on 2008-12-04 for personal care composition with cocoa butter and dihydroxypropyl ammonium salts.
This patent application is currently assigned to CONOPCO, INC., D/B/A UNILEVER, CONOPCO, INC., D/B/A UNILEVER. Invention is credited to Prem Chandar, Zhi-xing Jiang, Daniel Alfred Tempesta, Wei Dong Tian.
Application Number | 20080299237 11/755008 |
Document ID | / |
Family ID | 39387349 |
Filed Date | 2008-12-04 |
United States Patent
Application |
20080299237 |
Kind Code |
A1 |
Chandar; Prem ; et
al. |
December 4, 2008 |
PERSONAL CARE COMPOSITION WITH COCOA BUTTER AND DIHYDROXYPROPYL
AMMONIUM SALTS
Abstract
A personal care composition is provided that when the
composition is applied to the skin provides improved translucency
to reveal a healthy skin color. The composition is based upon a
mixture of dihydroxypropyl quaternary ammonium salt and cocoa
butter.
Inventors: |
Chandar; Prem; (Closter,
NJ) ; Tian; Wei Dong; (Shelton, CT) ;
Tempesta; Daniel Alfred; (Waterbury, CT) ; Jiang;
Zhi-xing; (Southbury, CT) |
Correspondence
Address: |
UNILEVER PATENT GROUP
800 SYLVAN AVENUE, AG West S. Wing
ENGLEWOOD CLIFFS
NJ
07632-3100
US
|
Assignee: |
CONOPCO, INC., D/B/A
UNILEVER
Englewood Cliffs
NJ
|
Family ID: |
39387349 |
Appl. No.: |
11/755008 |
Filed: |
May 30, 2007 |
Current U.S.
Class: |
424/769 ;
514/642 |
Current CPC
Class: |
A61K 8/0208 20130101;
A61K 8/922 20130101; A61Q 19/00 20130101; A61K 8/416 20130101 |
Class at
Publication: |
424/769 ;
514/642 |
International
Class: |
A61K 31/14 20060101
A61K031/14; A61K 36/00 20060101 A61K036/00 |
Claims
1. A personal care product comprising: (i) from about 0.05% to
about 30% by weight of a dihydroxypropyl quaternary ammonium salt
of structure AB, wherein A is a cationic charged component of the
salt AB, B is an anionic charged component of the salt AB, and A
has a single quaternized nitrogen atom, at least two hydroxy groups
and a molecular weight no higher than about 250; (ii) from about
0.01 to about 30% by weight of cocoa butter.
2. The composition according to claim 1 wherein the quaternary
ammonium salt is a dihydroxypropyltri(C.sub.1-C.sub.3
alkyl)ammonium salt.
3. The composition according to claim 2 wherein the salt is
dihydroxypropyltrimonium chloride.
4. The composition according to claim 1 wherein cocoa butter is
present in an amount from about 0.5 to about 10% by weight.
5. The composition according to claim 1 wherein the dihydroxypropyl
quaternary ammonium salt is present in an amount from about 1 to
about 15% by weight.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention concerns personal care formulas, particularly
for facial and body products, which allow visualization of
underlying skin to be seen as having a healthy natural color.
[0003] 2. The Related Art
[0004] Vitality is often evidenced by a person's face. Appealing
features include a natural look of a person's own skin.
Translucency is the property of a cosmetic formula which allows
light to transfer into the epidermis so that underlying skin can be
seen. This includes visualization of blood vessels. A pinkish
healthy skin color emanates therefrom.
[0005] U.S. Pat. No. 7,175,836 B1 (Hart et al.) discloses a
water-in-oil cosmetic composition containing conjugated linoleic
acid which was shown to have an effect on improving brightness and
radiance.
[0006] An object of the present invention is to provide a cosmetic
composition which delivers a natural look of healthy color,
particularly through achievement of improved translucency.
SUMMARY OF THE INVENTION
[0007] A personal care composition is provided which includes:
[0008] (i) from about 0.05% to about 30% by weight of a
dihydroxypropyl quaternary ammonium salt of structure AB, wherein
[0009] A is a cationic charged component of the salt AB, [0010] B
is an anionic charged component of the salt AB, and [0011] A has a
single quaternized nitrogen atom, at least two hydroxy groups and a
molecular weight no higher than about 250; [0012] (ii) from about
0.01 to about 30% by weight of cocoa butter.
DETAILED DESCRIPTION OF THE INVENTION
[0013] Now it has been found that translucency can be imparted to
skin through a composition that includes dihydroxypropyl quaternary
ammonium salts and cocoa butter.
[0014] Thus, an important material of the present invention is
dihydroxypropyl quaternary ammonium salts of structure AB, wherein
A is a cationic charged component of the salt AB, and B is an
anionic charged component of the salt AB, A has one quaternized
nitrogen atom, at least two hydroxyl groups and a molecular weight
no higher than about 250 but preferably no higher than about 200,
and optimally no higher than 170.
[0015] Anionic charged component B may be organic or inorganic with
proviso that the material is cosmetically acceptable. Typical
inorganic anions are halides, sulfates, phosphates, nitrates and
borates. Most preferred are the halides, especially chloride.
Organic anionic counter ions include methosulfate, toluoyl sulfate,
acetate, citrate, tartrate, lactate, gluconate, and
benzenesulfonate. The number and charge of negatively charged
component B will be sufficient to neutralize the positive charge of
component A.
[0016] A preferred embodiment of the quaternary ammonium salts is
the dihydroxypropyl tri(C.sub.1-C.sub.3 alkyl or
hydroxyalkyl)ammonium salts.
[0017] These salts may be obtained in a variety of synthetic
procedures, most particularly by hydrolysis of
chlorohydroxypropyltri(C.sub.1-C.sub.3 alkyl or
hydroxyalkyl)ammonium salts. Ordinarily the C.sub.1-C.sub.3 alkyl
or hydroxyalkyl constituent on the quaternized ammonium group will
be methyl, ethyl, n-propyl, isopropyl, hydroxyethyl, hydroxymethyl
and mixtures thereof. Particularly preferred is a trimethyl
ammonium group known through INCI nomenclature as a "trimonium"
group. A most preferred species is 1,2-dihydroxypropyltrimonium
chloride, wherein the C.sub.1-C.sub.3 alkyl is a methyl group.
[0018] Another useful species of the quaternary ammonium salts is
the material of structure (I).
##STR00001##
[0019] Amounts of the quaternary ammonium salts may range from
about 0.05 to about 30%, preferably from about 0.1 to about 25%,
more preferably from about 1 to about 15%, optimally from about 5
to about 10% by weight of the composition.
[0020] Another important component of the present invention is that
of cocoa butter. The term "cocoa butter" is also defined as oleum
theobromatis (theobroma oil). This material is obtained from the
cacao bean by expression, decoction or extraction by solvent.
Particularly common is a production method wherein cacao seeds are
compressed between hot or cold plates. Typical properties are a
specific gravity ranging from about 0.858 to 0.864 (100/25.degree.
C.), melting point between about 30 to about 35.degree. C.,
refractive index (n 40/D) of about 1.4537 to 1.4585; saponification
number about 188 to 200 and an iodine number from about 32 to 43.
Amounts of the cocoa buffer may range from about 0.01 to about 30%,
preferably from about 0.1 to about 15%, more preferably from about
0.5 to about 10%, and optimally from about 1% to about 5% by
weight.
[0021] Emollient materials may serve as cosmetically acceptable
carriers. These may be in the form of natural or synthetic esters,
hydrocarbons and silicones. Amounts of the emollients may range
anywhere from about 0.1 to about 60%, preferably between about 1
and about 30% by weight of the composition.
[0022] Among the ester emollients are:
(a) Alkyl esters of saturated fatty acids having 10 to 24 carbon
atoms. Examples thereof include behenyl neopentanoate, isononyl
isonanonoate, isopropyl myristate and octyl stearate. (b)
Ether-esters such as fatty acid esters of ethoxylated saturated
fatty alcohols. (c) Polyhydric alcohol esters. Ethylene glycol mono
and di-fatty acid esters, diethylene glycol mono- and di-fatty acid
esters, polyethylene glycol (200-6000) mono- and di-fatty acid
esters, propylene glycol mono- and di-fatty acid esters,
polypropylene glycol 2000 monostearate, ethoxylated propylene
glycol monostearate, glyceryl mono- and di-fatty acid esters,
polyglycerol poly-fatty esters, ethoxylated glyceryl monostearate,
1,3-butylene glycol monostearate, 1,3-butylene glycol distearate,
polyoxyethylene polyol fatty acid ester, sorbitan fatty acid
esters, and polyoxyethylene sorbitan fatty acid esters are
satisfactory polyhydric alcohol esters. Particularly useful are
pentaerythritol, trimethylolpropane and neopentyl glycol esters of
C.sub.1-C.sub.30 alcohols. (d) Wax esters such as beeswax,
spermaceti wax and tribehenin wax. (e) Sugar ester of fatty acids
such as sucrose polybehenate and sucrose polycottonseedate.
[0023] Natural ester emollients principally are based upon mono-,
di- and tri-glycerides. Representative glycerides include sunflower
seed oil, cottonseed oil, borage oil, borage seed oil, primrose
oil, castor and hydrogenated castor oils, rice bran oil, soybean
oil, olive oil, safflower oil, shea butter, jojoba oil and
combinations thereof. Animal derived emollients are represented by
lanolin oil and lanolin derivatives. Amounts of the natural esters
may range from about 0.1 to about 20% by weight of the
compositions.
[0024] Hydrocarbons which are suitable cosmetically acceptable
carriers include petrolatum, mineral oil, C.sub.11-C.sub.13
isoparaffins, polybutenes, and especially isohexadecane, available
commercially as Permethyl 101A from Presperse Inc.
[0025] Fatty acids having from 10 to 30 carbon atoms may also be
suitable as cosmetically acceptable carriers. Illustrative of this
category are pelargonic, lauric, myristic, palmitic, stearic,
isostearic, oleic, linoleic, linolenic, hydroxystearic and behenic
acids.
[0026] A wide variety of silicones including materials of liquid,
solid or semi-solid consistency at room temperature can be useful
as emollients for this invention. Liquid silicones include silicone
oils which may be divided into the volatile and nonvolatile
variety. The term "volatile" as used herein refers to those
materials which have a measurable vapor pressure at ambient
temperature. Volatile silicone oils are preferably chosen from
cyclic (cyclomethicone) or linear polydimethylsiloxanes containing
from 3 to 9, preferably from 4 to 5, silicon atoms. Commercially
available volatile silicone oils include DC 200, DC 244, DC 245, DC
344 and DC 345, all supplied by the Dow Corning Corporation;
SF-1204, SF-1202 Silicone Fluids, GE 7207 and GE 7158 sourced from
GE Silicones; and SWS-03314 sourced from SWS Silicones
Corporation.
[0027] Useful nonvolatile silicone oils include polyalkyl
siloxanes, polyalkylaryl siloxanes and polyether siloxane
copolymers. The essentially nonvolatile polyalkyl siloxanes useful
herein include, for example, polydimethyl siloxanes with
viscosities of from about 5.times.10.sup.-6 to 0.1 m.sup.2/s at
25.degree. C. Among the preferred nonvolatile emollients useful in
the present compositions are the polydimethyl siloxanes having
viscosities from about 1.times.10.sup.-5 to about 4.times.10.sup.-4
m.sup.2/s at 25.degree. C. Representative commercial materials
include polyalkyl siloxanes sold under the Viscasil Series from
G.E. Silicones, and the DC 200 series sold by the Dow Corning
Corporation. Polyalkylaryl siloxanes including polymethylphenyl
siloxanes such as SF 1075 methyl-phenyl fluid and 556 Cosmetic
Grade Fluid (sold by Dow Corning Corporation) may also be useful.
Illustrative polyoxyalkylene ether copolymers are commercially
available as SF 1066 from G.E. Silicones, and PEG-10 Dimethicone
available from Shin-Etsu.
[0028] Another class of nonvolatile silicones are emulsifying and
non-emulsifying silicone elastomers. Representative of this
category is Dimethicone/Vinyl Dimethicone Crosspolymer available as
Dow Corning 9040, General Electric SFE 839, and Shin-Etsu KSG-18.
Silicone waxes such as Silwax WS-L (Dimethicone Copolyol Laurate)
may also be useful.
[0029] Amounts of the silicone may range from about 0.05 to about
50%, preferably from about 0.5 to about 40%, more preferably from
about 2 to about 20%, optimally from about 5 to about 12% by weight
of the composition.
[0030] Surfactants may also be present in compositions of this
invention. Total concentration of the surfactant when present may
range from about 0.1 to about 50%, preferably from about 1 to about
25%, optimally from about 1 to about 10% by weight of the
composition, and being highly dependent upon the type of personal
care product. The surfactant may be selected from the group
consisting of anionic, nonionic, cationic and amphoteric actives.
Particularly preferred nonionic surfactants are those with a
C.sub.10-C.sub.20 fatty alcohol or acid hydrophobe condensed with
from 2 to 100 moles of ethylene oxide or propylene oxide per mole
of hydrophobe; C.sub.2-C.sub.10 alkyl phenols condensed with from 2
to 20 moles of alkylene oxide; mono- and di-fatty acid esters of
ethylene glycol; fatty acid monoglyceride; sorbitan, mono- and
di-C.sub.8-C.sub.20 fatty acids; and polyoxyethylene sorbitan as
well as combinations thereof. Alkyl polyglycosides and saccharide
fatty amides (e.g. methyl gluconamides) and trialkylamine oxides
are also suitable nonionic surfactants.
[0031] Preferred anionic surfactants include soap, alkyl ether
sulfates and sulfonates, alkyl sulfates and sulfonates,
alkylbenzene sulfonates, alkyl and dialkyl sulfosuccinates,
C.sub.8-C.sub.20 acyl isethionates, C.sub.8-C.sub.20 alkyl ether
phosphates, C.sub.8-C.sub.20 sarcosinates, C.sub.8-C.sub.20 acyl
lactylates, sulfoacetates and combinations thereof.
[0032] Useful amphoteric surfactants include cocoamidopropyl
betaine, C.sub.12-C.sub.20 trialkyl betaines, sodium
lauroamphoacetate, and sodium laurodiamphoacetate.
[0033] Adjunct humectants may be employed in the present invention.
These are generally polyhydric alcohol-type materials. Typical
polyhydric alcohols include glycerin, propylene glycol, dipropylene
glycol, polypropylene glycol, polyethylene glycol, sorbitol,
hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol,
isoprene glycol, 1,2,6-hexanetriol, ethoxylated glycerol,
propoxylated glycerol and mixtures thereof. The amount of adjunct
humectant may range anywhere from about 0.2 to about 40%,
preferably between 1 and 25%, most preferably between 2 and 15% by
weight of the composition. Most preferred is glycerin as an adjunct
humectant or moisturizer.
[0034] Sunscreen agents may also be included in compositions of the
present invention. Particularly preferred are such materials as
ethylhexyl p-methoxycinnamate, available as Parsol MCX.RTM.,
Avobenzene available as Parsol 1789.RTM., and benzophenone-3 also
known as Oxybenzone. Inorganic sunscreen actives may be employed
such as microfine (1 to 100 nm) titanium dioxide and zinc oxide.
Amounts of the sunscreen agents when present may generally range
from 0.1 to 30%, preferably from 2 to 20%, optimally from 4 to 10%
by weight of the composition.
[0035] Preservatives can desirably be incorporated into the
personal care compositions of this invention to protect against the
growth of potentially harmful microorganisms. Particularly
preferred preservatives are phenoxyethanol, methyl paraben, propyl
paraben, imidazolidinyl urea, dimethyloldimethylhydantoin,
ethylenediaminetetraacetic acid salts (EDTA), sodium
dehydroacetate, methylchloroisothiazolinone, methylisothiazolinone,
iodopropynbutylcarbamate and benzyl alcohol. The preservatives
should be selected having regard for the use of the composition and
possible incompatibilities between the preservatives and other
ingredients. Preservatives are preferably employed in amounts
ranging from 0.0001% to 2% by weight of the composition.
[0036] Compositions of the present invention may include vitamins.
Illustrative vitamins are Vitamin A (retinol), Vitamin B.sub.2,
Vitamin B.sub.3 (niacinamide), Vitamin B.sub.6, Vitamin C, Vitamin
E, Folic Acid and Biotin. Derivatives of the vitamins may also be
employed. For instance, Vitamin C derivatives include ascorbyl
tetraisopalmitate, magnesium ascorbyl phosphate and ascorbyl
glycoside. Derivatives of Vitamin E include tocopheryl acetate,
tocopheryl palmitate and tocopheryl linoleate. DL-panthenol and
derivatives may also be employed. Total amount of vitamins when
present in compositions according to the present invention may
range from 0.001 to 10%, preferably from 0.01% to 1%, optimally
from 0.1 to 0.5% by weight of the composition.
[0037] Another type of useful substance can be that of an enzyme
such as amylases, oxidases, proteases, lipases, cellulases,
elastases and combinations.
[0038] Skin lightening compounds may be included in the
compositions of the invention. Illustrative substances are
placental extract, lactic acid, niacinamide, arbutin, kojic acid,
ferulic acid, Pisum Sativum (Actiwhite LS 9808, ex Cognis),
resorcinol and derivatives including 4-substituted resorcinols and
combinations thereof. Amounts of these agents may range from about
0.1 to about 10%, preferably from about 0.5 to about 2% by weight
of the composition.
[0039] Sunless tanners may also be formulated with compositions of
this invention. Representative of this category is
dihydroxyacetone, erythrulose, Troxerutin, melanin, mahkanni and
mixtures thereof. Adjunct agents include amino acids, peptides,
amines and combinations. Amounts of the sunless tanner may range
from about 0.1 to about 15%, preferably from about 0.5 to about
10%, optimally from about 1 to about 5% by weight.
[0040] Desquamation promoters may be present. Illustrative are the
alpha-hydroxycarboxylic acids and beta-hydroxycarboxylic acids. The
term "acid" is meant to include not only the free acid but also
salts and C.sub.1-C.sub.30 alkyl or aryl esters thereof and
lactones generated from removal of water to form cyclic or linear
lactone structures. Representative acids are glycolic, lactic and
malic acids. Salicylic acid is representative of the
beta-hydroxycarboxylic acids. Amounts of these materials when
present may range from about 0.01 to about 15% by weight of the
composition.
[0041] A variety of herbal extracts may optionally be included in
compositions of this invention. The extracts may either be water
soluble or water-insoluble carried in a solvent which respectively
is hydrophilic or hydrophobic. Water and ethanol are the preferred
extract solvents. Illustrative extracts include those from green
tea, chamomile, licorice, aloe vera, grape seed, citrus unshui,
willow bark, sage, thyme and rosemary.
[0042] Also included may be such materials as lipoic acid,
retinoxytrimethylsilane (available from Clariant Corp. under the
Silcare 1M-75 trademark), dehydroepiandrosterone (DHEA) and
combinations thereof. Ceramides (including Ceramide 1, Ceramide 3,
Ceramide 3B and Ceramide 6) as well as pseudoceramides may also be
useful. Amounts of these materials may range from about 0.000001 to
about 10%, preferably from about 0.0001 to about 1% by weight of
the composition.
[0043] Colorants, opacifiers and abrasives may also be included in
compositions of the present invention. Each of these substances may
range from about 0.05 to about 5%, preferably between 0.1 and 3% by
weight of the composition.
[0044] Personal care compositions of the present invention may be
in any form. These forms may include lotions, creams, roll-on
formulations, sticks, mousses, aerosol and non-aerosol sprays and
fabric (e.g. nonwoven textile)-applied formulations.
[0045] A wide variety of packaging can be employed to store and
deliver the personal care compositions. Packaging is often
dependent upon the type of personal care end-use. For instance,
leave-on skin lotions and creams, sunless tanners and shower gels
generally employ plastic containers with an opening at a dispensing
end covered by a closure. Typical closures are screw-caps,
non-aerosol pumps and flip-top hinged lids. Metallic cans
pressurized by a propellant and having a spray nozzle serve as
packaging for sprayable forms of the personal care products. Toilet
bars may have packaging constituted by a cellulosic or plastic
wrapper or within a cardboard box or even encompassed by a shrink
wrap plastic film.
[0046] The term "comprising" is meant not to be limiting to any
subsequently stated elements but rather to encompass non-specified
elements of major or minor functional importance. In other words
the listed steps, elements or options need not be exhaustive.
Whenever the words "including" or "having" are used, these terms
are meant to be equivalent to "comprising" as defined above.
[0047] Except in the operating and comparative examples, or where
otherwise explicitly indicated, all numbers in this description
indicating amounts of material ought to be understood as modified
by the word "about".
[0048] All documents referred to herein, including all patents,
patent applications, and printed publications, are hereby
incorporated by reference in their entirety in this disclosure.
[0049] It should be noted that in specifying any range of
concentration or amount, any particular upper concentration can be
associated with any particular lower concentration or amount.
[0050] The following examples will more fully illustrate the
embodiments of this invention. All parts, percentages and
proportions referred to herein and in the appended claims are by
weight unless otherwise illustrated.
EXAMPLE 1
[0051] A representative personal care composition of the present
invention in the form of a cosmetic lotion is outlined under Table
I.
TABLE-US-00001 TABLE I INGREDIENT WEIGHT % PHASE A Water Balance
Disodium EDTA 0.05 Methyl Paraben 0.15 Magnesium Aluminum Silicate
0.60 Triethanolamine 1.20 Cocoa Butter 3.00
Dihydroxypropyltrimonium Chloride 5.00 PHASE B Xanthan Gum 0.20
Natrosol .RTM. 250HHR (ethyl cellulose) 0.50 Butylene Glycol 3.00
Glycerin 10.00 PHASE C Sodium Stearoyl Lactylate 0.10 Glycerol
Monostearate 1.50 Stearyl Alcohol 1.50 Isostearyl Palmitate 3.00
Silicone Fluid 1.00 Cholesterol 0.25 Sorbitan Stearate 1.00
Butylated Hydroxy Toluene 0.05 Vitamin E Acetate 0.01 PEG-100
Stearate 2.00 Stearic Acid 3.00 Propyl Paraben 0.10 Parsol MCX
.RTM. 2.00 Caprylic/Capric Triglyceride 0.50 Hydroxycaprylic Acid
0.01 C12 15 Alkyl Octanoate 3.00 PHASE D Vitamin A Palmitate 0.10
Bisabolol 0.01 Vitamin A Acetate 0.01 Fragrance 0.03 Retinol 50C
0.02 Conjugated Linoleic Acid 0.50
EXAMPLE 2
[0052] Illustrated herein is a skin cream incorporating a quat salt
and cocoa butter of the present invention.
TABLE-US-00002 TABLE II INGREDIENT WEIGHT % Glycerin 10.00
Niacinamide 5.00 Dihydroxypropyltrimonium Chloride 5.00 Cocoa
Butter 5.00 Permethyl 101A.sup.1 3.00 Sepigel 305.sup.2 2.50
Q2-1403.sup.3 2.00 Linseed Oil 1.33 Arlatone 2121.sup.4 1.00 Cetyl
Alcohol CO-1695 0.72 SEFA Cottonate.sup.5 0.67 Tocopherol Acetate
0.50 Panthenol 0.50 Stearyl Alcohol 0.48 Titanium Dioxide 0.40
Disodium EDTA 0.10 Glydant Plus.sup.6 0.10 PEG-100 Stearate 0.10
Stearic Acid 0.10 Purified Water Balance .sup.1Isohexadecane,
Presperse Inc., South Plainfield, NJ .sup.2Polyacrylamide(and)C13
14 Isoparaffin(and) Laureth-7, Seppic Corporation, Fairfield, NJ
.sup.3dimethicone(and)dimethiconol, Dow Corning Corp. Midland, MI
.sup.4Sorbitan Monostearate and Sucrococoate, ICI Americas Inc.,
Wilmington, DE .sup.5Sucrose ester of fatty acid .sup.6DMDM
Hydantoin (and) Iodopropynyl Butylcarbamate, Lonza Inc., Fairlawn,
NJ
EXAMPLE 3
[0053] Illustrative of another cosmetic composition incorporating
the quat salt and cocoa butter according to the present invention
is the formula of Table III.
TABLE-US-00003 TABLE III INGREDIENT WEIGHT % Polysilicone-11 29
Cyclomethicone 59 Glycerin 10 Dihydroxypropyltrimonium Chloride 1.2
Dimethicone Copolyol 0.5 Cocoa Butter 0.3
EXAMPLE 4
[0054] A relatively anhydrous composition incorporating the quat
salt and cocoa butter of the present invention is reported in Table
IV.
TABLE-US-00004 TABLE IV INGREDIENT WEIGHT % Cyclomethicone 60.65
Glycerin 11.00 Dimethicone 10.10 Squalane 6.00 Cocoa Butter 4.00
Dihydroxypropyltrimonium Chloride 5.00 Isostearic Acid 1.90 Borage
Seed Oil 0.90 Retinyl Palmitate 0.25 Ceramide 6 0.10 Tocopherol
0.10
EXAMPLE 5
[0055] An aerosol packaged foaming cleanser with a quat salt and
cocoa butter suitable for the present invention is outlined in
Table V.
TABLE-US-00005 TABLE V INGREDIENT WEIGHT % Sunflower Seed Oil 10.00
Glycerin 10.00 Maleated Soybean Oil 5.00 Cocoa Butter 1.00
Polyglycero-4 Oleate 1.00 Sodium C14 16 Olefin Sulfonate 15.00
Sodium Lauryl Ether Sulphate (25% active) 15.00
Cocoamidopropylbetaine 15.00 DC 1784 .RTM. (Silicone Emulsion 50%)
5.00 Polyquaternium-11 1.00 Dihydroxypropyltrimonium Chloride 1.00
Water Balance
EXAMPLE 6
[0056] A disposable, single use personal care towelette product is
described according to the present invention. A 70/30
polyester/rayon non-woven towelette is prepared with a weight of
1.8 grams and dimensions of 15 cm by 20 cm. Onto this towelette is
impregnated 1.0 grams of a composition including a quaternary
ammonium salt and a silicone microemulsion as outlined in Table VI
below.
TABLE-US-00006 TABLE VI INGREDIENT WEIGHT %
Dihydroxypropyltrimonium Chloride 4.00 Glycerin 12.00 Cocoa Butter
1.00 Disodium Capryl Amphodiacetate 1.00 Gluconolactone 0.90
Silicone Microemulsion 0.85 Witch Hazel 0.50 PEG-40 Hydrogenated
Castor Oil 0.50 Fragrance 0.20 Vitamin E Acetate 0.001 Water
Balance
EXAMPLE 7
[0057] A toilet bar illustrative of the present invention is
outlined under Table VII.
TABLE-US-00007 TABLE VII INGREDIENT WEIGHT % Sodium Soap (85/15
Tallow/Coconut) 77.77 Dihydroxypropyltrimonium Chloride 3.50 Cocoa
Butter 2.00 Sodium Chloride 0.77 Titanium Dioxide 0.40 Fragrance
1.50 Disodium EDTA 0.02 Sodium Etidronate 0.02 Fluorescer 0.024
Water Balance
EXAMPLE 8
[0058] Herein is reported a body lotion incorporating the quat salt
and cocoa butter of the present invention.
TABLE-US-00008 TABLE VIII INGREDIENT WEIGHT % Stearic Acid 2.00
Glycol Stearate/Stearamide AMP 1.10 Glycerol Monostearate 0.55
PEG-100 Stearate 1.00 Dimethicone 1.00 Isopropyl Palmitate 2.50
Cetyl Alcohol 0.30 Cocoa Butter 1.00 Dihydroxypropyltrimonium
Chloride 2.00 Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate
2.00 Tetrasodium EDTA 0.10 Glycerin 10.00 DC 1501
(Cyclopentasiloxane and Dimethiconol) 0.50 Glydant Plus .RTM.
Liquid 0.20 Dihydroxyacetone 1.50 Erythrulose 0.20 Fragrance 0.80
Water Balance
EXAMPLE 9
[0059] Translucency measurements are reported herein. Skin is a
translucent substance. When light is incident on skin, a small
portion is reflected and scattered at the skin surface. Most of the
light continues to penetrate into the skin to be scattered that
changes the propagation direction. A portion of light also gets
absorbed by skin chromophores such as blood and melanin at deeper
layers of skin. The scattering of light inside the skin changes the
light path and results in light diffusion from its original path.
After multiple scattering, some of the light survives absorption
and manages to return to the skin surface to escape into the
reflection space. This portion is referred to as the diffuse
reflected light. This diffuse reflected light goes through the
absorption by the blood and melanin and therefore carries the
distinctive signature of the absorbents that give skin its unique
color.
[0060] Total skin spectral reflectance is the sum of the
reflectance at and beneath the skin surface. Translucency is the
light penetration and diffusion inside the skin. It is dependent on
the optical scattering and absorption properties of the skin.
Translucency is low when the scattering and absorption coefficients
are high. This corresponds to the appearance of skin being hard and
opaque with more uneven texture. Translucency is high when the
scattering and absorption coefficients are low. This corresponds to
the appearance of skin being soft with more even texture.
[0061] Translucency is related to the spectral reflectance. Skin
translucency increases as the surface scattering decreases and more
light penetrates into the skin. Therefore, the increase of skin
translucency corresponds to the decrease of the total spectral
reflectance.
[0062] Measurements were performed with a Minolta Spectrophotometer
CM-2500C. This instrument utilizes two pulsed xenon lamps as light
source and operates over a wavelength range from 360 to 740 nm. The
color space is defined by the well known L* a* b*. Measurements
were done by touching the spectrophotometer probe gently against
the test area and taking three repeat reflectance spectra. These
measurements were done at 10 minutes, 1 hour and 3 hours after
product application.
[0063] Analysis of the data was as follows:
1. Reflectance spectra Change="Spectra after application"-"Spectra
of baseline (before application)". 2. Delta L*=L* after
application-L* of baseline. 3. The translucency change was measured
by delta L*: decrease L* indicates more translucency. 4. The
relative translucency was measured by normalized delta L*.
[0064] The application areas were three body sites on the forearm
(4.times.5 cm.sup.2). Samples and dosing were as follows.
Site 1: Apply 2 mg/cm.sup.2 sample A Site 2: Apply 0.5 mg/cm.sup.2
sample B Site 3: Apply 2 mg/cm.sup.2 sample A with 0.5 mg/cm.sup.2
sample B
[0065] Sample A was a 12% dihydroxypropyltrimonium chloride in
water. Sample B was 50% cocoa butter in a carrier oil (caprylic
capric triglycerides).
[0066] Efficacy tests are reported in Table IX. The normalized
translucency values represent the change of reflectance between
baseline and sample applied reflectance spectra.
TABLE-US-00009 TABLE IX Normalized Sample Active Ingredient
Translucency A Dihydroxypropyltrimonium Chloride 0.8 (2
mg/cm.sup.2) B Cocoa Butter 0.2 (0.5 mg/cm.sup.2) A + B
Dihydroxypropyltrimonium Chloride and 1.42 (0.5 mg/cm.sup.2) Cocoa
Butter Mixture
[0067] By itself, the cocoa butter (Sample B) had only a minor
positive effect upon translucency. Sample A was the
dihydroxypropyltrimonium chloride active which provided a much
stronger improvement in translucency. Combination of the
dihydroxypropyltrimonium chloride with cocoa butter unexpectedly
gave a value of 1.42 revealing a substantial improvement in the
healthy skin color property.
* * * * *